NSN 4240-01-407-2849 · NIIN 014072849 · Part number 336 890 211
Interspiro Inc · FSC 4240 — Safety and Rescue Equipment · FSG 42 — Fire Fighting, Rescue, and Safety Equipment · CAGE 47432
Government record, cited
NSN 4240-01-407-2849 — this item is cataloged by the U.S. Government under National Stock Number 4240-01-407-2849. Manufacturer of record part number: 336 890 211.
Also searched as4240-01-407-2849 ·
4240014072849 ·
NIIN 014072849 ·
01-407-2849 ·
FSC 4240 Safety and Rescue Equipment · CAGE 47432 · 336 890 211
Nearby stock numbers← 4240-01-407-2848 Hose Assembly, Air Breathing
·
4240-01-407-3290 By-Pass Coupling, Male →
Features
Valve,breathing Apparatus — FSC 4240
Overall Diameter: 0.700 INCHES NOMINAL IN
Material: COPPER ALLOY
1 manufacturer part number on file
Manufacturer of record: Interspiro Inc
Identification
NSN: 4240-01-407-2849
NIIN: 014072849
FSC: 4240 — Safety and Rescue Equipment
FSG: 42 — Fire Fighting, Rescue, and Safety Equipment
Primary part number: 336 890 211
Manufacturer: Interspiro Inc
General Description
The Valve,breathing Apparatus, cataloged under National Stock Number 4240-01-407-2849, is classified within Federal Supply Class 4240 (Safety and Rescue Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. The manufacturer of record is Interspiro Inc. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4240-01-407-2849
Primary Part Number
336 890 211
Item Name
Valve,breathing Apparatus
FSC / FSG
4240 / 42 — Safety and Rescue Equipment
Manufacturer
Interspiro Inc
Status
ACTIVE
Overall Diameter
0.700 INCHES NOMINAL IN
Material
COPPER ALLOY
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Other items in FSC 4240 — Safety and Rescue Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4240-00-001-1515
4240-00-001-1515 · Item name not on file
4240-00-001-2684
4240-00-001-2684 · Item name not on file
4240-00-006-0022
HOSE,EVACUATION
4240-00-007-4576
4240-00-007-4576 · Item name not on file
4240-00-007-8182
4240-00-007-8182 · Item name not on file
4240-00-007-8183
4240-00-007-8183 · Item name not on file
4240-00-007-8184
4240-00-007-8184 · Item name not on file
4240-00-007-8185
4240-00-007-8185 · Item name not on file
Frequently Asked Questions
What is NSN 4240-01-407-2849?
NSN 4240-01-407-2849 is a Valve,breathing Apparatus, manufactured by Interspiro Inc, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
What part numbers are listed for NSN 4240-01-407-2849?
NSN 4240-01-407-2849 has 1 manufacturer part number on file: 336 890 211 (Interspiro Inc).
What are the specifications of 336 890 211?
Key specifications for 336 890 211: Overall Diameter: 0.700 INCHES NOMINAL IN; Overall Length: 2.120 INCHES NOMINAL IN; Special Features: ACTUALLY A BY-PASS VALVE WHICH OVERRIDES THE NORMAL AUTOMATIC FUNCTION OF THE PRESSURE DEMAND VALVE; SOLE SOURCE REQUIRED BY STATUTE 6.302; End Item Identification: 4240-01-333-3495. 2 specifications are documented in the U.S. Government catalog.
Is NSN 4240-01-407-2849 hazardous material?
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.